In his first-ever interview, the sole Australian survivor of the Waco siege has revealed to 60 Minutes what really took place during the 51-day stand-off, and why he believes crazed cult leader David Koresh will one day return to Earth as the son of God.

Labour boss denies asking of citizenship

The president of the New Zealand Labour Party has denied knowing anything about inquiries made by his party into the citizenship of Deputy Prime Minister Barnaby Joyce.

Mr Joyce told parliament on Monday the New Zealand High Commission contacted him last Thursday with the "shocking" information that he could be a Kiwi by descent.

Mr Joyce's father was born in New Zealand.

"On the basis of preliminary advice from their Department of Internal Affairs - which had received inquiries from the New Zealand Labour Party - they considered I may be a citizen by descent of New Zealand," Mr Joyce said.

It's understood the issue stems from a question on notice by Labour MP Chris Hipkins, who is Shadow Leader of the House.

In a written question to Internal Affairs Minister Peter Dunne, Mr Hipkins questioned whether a child born in Australia to a New Zealand father would automatically have New Zealand citizenship.